Summary Early modern philosophers discussed the question of time in a variety of contexts; an enduring theme is the connection between time and the rational powers of the human soul. However, authors from a variety of confessional and philosophical perspectives also considered how the passions of the soul engage both humans and animals with the temporal world. This article considers a debate about the connections between time and the passions between two French physicians, Marin Cureau de la Chambre (1594–1669) and (...) Pierre Chanet (c.1603–c.1660). The article explores the extent to which their background in late Aristotelian philosophy shaped this project, and its place within the broader transformation of the philosophy of time in the seventeenth century. Cureau and Chanet belong within a well-known early modern tradition of debates about animal reasoning, but their discussion of time and the passions is a significant yet neglected episode in the vernacularisation of scholastic and Aristotelian natural philosophy. (shrink)